It Seems Frontloading is Everywhere
It seems like every other day there’s an article where scientists are discovering the presence of genes thought to have arisen late in evolution to be already present in ancient forms, so-called “living fossils”. In this case what we see in this particular “living fossil”, the shark, is the presence of genetic activity that is associated with ‘digit formation’ in limbed animals. Previously, scientists thought that there was some late phase additional activity which, we may say, was ‘added onto’ fin development. Here’s a quote: “We’ve uncovered a surprising degree of genetic complexity in place at an early point in the evolution of appendages,” said developmental biologist Martin Cohn, Ph.D.” As I say, these types of articles seem commonplace, yet Read More ›